Using Simple Network Time Protocol - Avaya 4524GT Configuration Manual

System configuration using ACLI

Using Simple Network Time Protocol

The Simple Network Time Protocol (SNTP) feature synchronizes the Universal Coordinated
Time (UTC) to an accuracy within 1 second. This feature adheres to the IEEE RFC 2030 (MIB
is the s5agent). With this feature, the system can obtain the time from any RFC 2030-compliant
NTP/SNTP server.
Important:
If problems occur when you use this feature, try various NTP servers. Some NTP servers
can be overloaded or currently inoperable.
The system retries connecting with the NTP server a maximum of three times, with 5 minutes
between each retry.
Use SNTP to provide a real-time timestamp for the software, shown as Greenwich Mean Time
(GMT).
If you run SNTP, the system synchronizes with the configured NTP server at boot-up and at
user-configurable periods thereafter (the default synchronization interval is 24 hours). The first
synchronization does not occur until network connectivity is established.
SNTP supports primary and secondary NTP servers. The system tries the secondary NTP
server only if the primary NTP server is unresponsive.
To configure SNTP, see the following commands:
• Show SNTP command
• show sys-info command
• SNTP enable command
• No SNTP enable command
• SNTP server primary address command
• SNTP server secondary address command
• No SNTP server command
• SNTP sync-now command
• SNTP sync-interval command
Show SNTP command
The show SNTP command displays the SNTP information, as well as the configured NTP
servers.
The syntax for the show SNTP command is
show sntp
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April 2011